US8102086B2 - Exciter machine comprising an auxiliary exciter machine - Google Patents

Exciter machine comprising an auxiliary exciter machine Download PDF

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Publication number
US8102086B2
US8102086B2 US12/596,012 US59601208A US8102086B2 US 8102086 B2 US8102086 B2 US 8102086B2 US 59601208 A US59601208 A US 59601208A US 8102086 B2 US8102086 B2 US 8102086B2
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United States
Prior art keywords
exciter
exciter machine
auxiliary
fan
machine
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Expired - Fee Related, expires
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US12/596,012
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US20100117467A1 (en
Inventor
Günther Hautke
Norman Kühn
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Siemens AG
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Siemens AG
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Assigned to SIEMENS AKTIENGESELLSCHAFT reassignment SIEMENS AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KUEHN, NORMAN, HAUTKE, GUENTHER
Publication of US20100117467A1 publication Critical patent/US20100117467A1/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/38—Structural association of synchronous generators with exciting machines
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

Definitions

  • the present invention relates to an exciter machine having an auxiliary exciter machine and a fan.
  • An exciter machine produces the electrical power which is required to supply power to the field windings of a generator.
  • One generally used exciter technique comprises a directly coupled exciter machine with an auxiliary exciter machine.
  • Exciter machines having an auxiliary exciter machine and a separate fan are available for four-pole and two-pole generators. Both the auxiliary exciter machine and the fan are manufactured separately and each require a shrink fit on the common shaft. This lengthens the shaft and the overall machine structure, and leads to increased manufacturing and assembly effort.
  • the previously available fans, which are composed of an aluminum casting, are also very expensive and complex.
  • the object of the present invention is to achieve a compact design, with less manufacturing and assembly effort, for an exciter machine of the type mentioned initially.
  • the fan which is arranged on one side of the exciter machine, has a mount ring on its external circumference, on which permanent magnets are arranged in order to form an auxiliary exciter rotor, wherein the auxiliary exciter rotor is moved within an auxiliary exciter stator.
  • the exciter machine according to the invention has a combined component comprising an auxiliary exciter rotor and a radial fan. This makes the design of the exciter machine considerably more compact. No shrink fit is required on the common shaft, thus resulting in less manufacturing and assembly effort.
  • One expedient refinement of the exciter machine according to the invention is characterized in that the fan, comprising a number of predetermined fan blades and two guide plates as well as a bush, together with the mount ring forms a cohesive unit, and in that the permanent magnets are adhesively bonded on the outside.
  • FIG. 1 shows a partially sectioned side view of an exciter machine according to the invention
  • FIG. 2 shows a perspective view of the fan with the integrated auxiliary exciter rotor.
  • FIG. 1 shows an exciter machine according to the present invention, with an auxiliary exciter machine and a fan.
  • the fan 1 with the auxiliary exciter rotor 2 and the auxiliary exciter stator 3 can be seen in the open part of the side view.
  • the compact design of the exciter machine can clearly be seen.
  • FIG. 2 shows the more detailed design of the fan 1 with the integrated auxiliary exciter rotor.
  • the actual fan comprises the front guide plate 4 , the rear guide plate 5 , the fan blades 6 arranged between them, and the shrink bush 7 .
  • the mount ring 8 is fitted to the outer ends of the fan blades 6 .
  • the shrink bush 7 , the two guide plates 4 and 5 , the fan blades 6 and the mount ring 8 are welded together and form a unit. Once the welding work has been completed, the mount ring is turned over, and the interference fit with the bush is produced.
  • the mount ring 8 is also used to provide robustness at the same time.
  • Permanent magnets 9 are fitted to the mount ring 8 . These permanent magnets 9 are secured by means of a binding, in order to ensure that the permanent magnets 9 are held securely during operation.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Synchronous Machinery (AREA)
  • Permanent Field Magnets Of Synchronous Machinery (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Manufacture Of Motors, Generators (AREA)

Abstract

An exciter machine including an auxiliary exciter machine and a fan is provided. The fan is arranged on one side of the exciter machine and includes a mount ring on the external circumference on which permanent magnets are arranged in order to form an auxiliary rotor. The auxiliary rotor is moved within an auxiliary exciter stator.

Description

CROSS REFERENCE TO RELATED APPLICATIONS
This application is the US National Stage of International Application No. PCT/EP2008/054748, filed Apr. 18, 2008 and claims the benefit thereof. The International Application claims the benefits of German application No. 10 2007 018 827.9 DE filed Apr. 20, 2007, both of the applications are incorporated by reference herein in their entirety.
FIELD OF INVENTION
The present invention relates to an exciter machine having an auxiliary exciter machine and a fan.
BACKGROUND OF INVENTION
An exciter machine produces the electrical power which is required to supply power to the field windings of a generator.
Depending on the generator rating, different techniques have been adopted for the exciter system. One generally used exciter technique comprises a directly coupled exciter machine with an auxiliary exciter machine.
Exciter machines having an auxiliary exciter machine and a separate fan are available for four-pole and two-pole generators. Both the auxiliary exciter machine and the fan are manufactured separately and each require a shrink fit on the common shaft. This lengthens the shaft and the overall machine structure, and leads to increased manufacturing and assembly effort. The previously available fans, which are composed of an aluminum casting, are also very expensive and complex.
SUMMARY OF INVENTION
The object of the present invention is to achieve a compact design, with less manufacturing and assembly effort, for an exciter machine of the type mentioned initially.
This object is achieved for the exciter machine as mentioned initially in that the fan, which is arranged on one side of the exciter machine, has a mount ring on its external circumference, on which permanent magnets are arranged in order to form an auxiliary exciter rotor, wherein the auxiliary exciter rotor is moved within an auxiliary exciter stator.
The exciter machine according to the invention has a combined component comprising an auxiliary exciter rotor and a radial fan. This makes the design of the exciter machine considerably more compact. No shrink fit is required on the common shaft, thus resulting in less manufacturing and assembly effort.
One expedient refinement of the exciter machine according to the invention is characterized in that the fan, comprising a number of predetermined fan blades and two guide plates as well as a bush, together with the mount ring forms a cohesive unit, and in that the permanent magnets are adhesively bonded on the outside.
This means that particularly little manufacturing and assembly effort is required for the fan and the integrated auxiliary exciter rotor.
BRIEF DESCRIPTION OF THE DRAWINGS
Further expedient refinements of the exciter machine according to the invention will become evident from the dependent claims and from the following description of one exemplary embodiment of the invention, with reference to the attached drawing in which:
FIG. 1 shows a partially sectioned side view of an exciter machine according to the invention, and
FIG. 2 shows a perspective view of the fan with the integrated auxiliary exciter rotor.
 DETAILED DESCRIPTION OF INVENTION
FIG. 1 shows an exciter machine according to the present invention, with an auxiliary exciter machine and a fan. The fan 1 with the auxiliary exciter rotor 2 and the auxiliary exciter stator 3 can be seen in the open part of the side view. The compact design of the exciter machine can clearly be seen.
FIG. 2 shows the more detailed design of the fan 1 with the integrated auxiliary exciter rotor.
The actual fan comprises the front guide plate 4, the rear guide plate 5, the fan blades 6 arranged between them, and the shrink bush 7. The mount ring 8 is fitted to the outer ends of the fan blades 6.
The shrink bush 7, the two guide plates 4 and 5, the fan blades 6 and the mount ring 8 are welded together and form a unit. Once the welding work has been completed, the mount ring is turned over, and the interference fit with the bush is produced.
The mount ring 8 is also used to provide robustness at the same time.
Permanent magnets 9 are fitted to the mount ring 8. These permanent magnets 9 are secured by means of a binding, in order to ensure that the permanent magnets 9 are held securely during operation.

Claims (4)

1. An exciter machine, comprising:
an auxiliary exciter machine; and
a fan,
wherein the fan is arranged on one side of the exciter machine and includes a mount ring on an external circumference, on which a plurality of permanent magnets are arranged in order to form an auxiliary exciter rotor,
wherein the auxiliary exciter rotor is moved within an auxiliary exciter stator,
wherein the fan further includes a plurality of predetermined fan blades arranged between two axially spaced guide plates, and a bush,
wherein the plurality of fan blades, the two guide plates, the bush, and the mount ring are welded together forming a cohesive unit, and
wherein the plurality of permanent magnets are adhesively bonded on an outside of the mount ring.
2. The exciter machine as claimed in claim 1, wherein the plurality of permanent magnets are secured using a binding.
3. The exciter machine as claimed in claim 1, wherein the auxiliary exciter stator is firmly connected to a housing which surrounds the exciter machine as well as the auxiliary exciter machine and the fan.
4. The exciter machine as claimed in claim 1, wherein the mount ring is fitted to a plurality of outer ends of the plurality of fan blades.
US12/596,012 2007-04-20 2008-04-18 Exciter machine comprising an auxiliary exciter machine Expired - Fee Related US8102086B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102007018827A DE102007018827A1 (en) 2007-04-20 2007-04-20 exciter
DE102007018827 2007-04-20
DE102007018827.9 2007-04-20
PCT/EP2008/054748 WO2008129002A1 (en) 2007-04-20 2008-04-18 Exciter machine comprising an auxiliary exciter machine

Publications (2)

Publication Number Publication Date
US20100117467A1 US20100117467A1 (en) 2010-05-13
US8102086B2 true US8102086B2 (en) 2012-01-24

Family

ID=39680891

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/596,012 Expired - Fee Related US8102086B2 (en) 2007-04-20 2008-04-18 Exciter machine comprising an auxiliary exciter machine

Country Status (6)

Country Link
US (1) US8102086B2 (en)
EP (1) EP2140540A1 (en)
JP (1) JP5189162B2 (en)
CN (1) CN101663808B (en)
DE (1) DE102007018827A1 (en)
WO (1) WO2008129002A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009053988A1 (en) * 2009-11-23 2011-05-26 Atb Technologies Gmbh Electric machine i.e. brushless electronically commutated motor, for use in e.g. medical application, has guide plate conveying medium in radial inside area with respect to longitudinal axis before medium arrives in radial outside area
CN102255458A (en) * 2010-05-17 2011-11-23 福建福安闽东亚南电机有限公司 Single-bearing brushless synchronous generator without front end cover
EP2639935B1 (en) 2012-03-16 2014-11-26 Siemens Aktiengesellschaft Rotor with permanent excitation, electrical machine with such a rotor and method for producing the rotor
DE102014117524A1 (en) 2014-11-28 2016-06-02 Deutsches Zentrum für Luft- und Raumfahrt e.V. Electric induction machine

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2340828A1 (en) 1973-08-11 1975-02-27 Lloyd Dynamowerke Gmbh Brushless synchronous machine secondary excitation system - is used to form magnetic shunt for excitation pole array
WO1979000187A1 (en) 1977-10-06 1979-04-19 Ass Elect Ind Synchronous machines
GB1575083A (en) 1976-03-15 1980-09-17 Westinghouse Electric Corp Supplemental field excitation for a permanent magnet rotor of a pilot exciter
US4459087A (en) 1982-06-02 1984-07-10 Aciers Et Outillage Peugeot Fan unit for an internal combustion engine of automobile vehicle
US4553075A (en) * 1983-08-04 1985-11-12 Rotron Incorporated Simple brushless DC fan motor with reversing field
US4734590A (en) * 1986-12-30 1988-03-29 Sundstrand Corporation Integrated drive generator with common center line
US4949022A (en) * 1989-01-27 1990-08-14 Lipman Leonard H Solid state DC fan motor
US5191254A (en) 1991-09-19 1993-03-02 Allied-Signal Inc. Minimum length, air cooled ac generator arrangement
DE4130016A1 (en) 1990-12-24 1993-03-11 Erich Rabe ELECTRONICALLY COMMUTED DC GENERATOR
DE19800570A1 (en) 1998-01-09 1999-07-15 Bayerische Motoren Werke Ag Fan with impeller and associated drive motor with variable magnetizable stator part
DE10036339A1 (en) 2000-07-26 2002-02-07 Bayerische Motoren Werke Ag Extremely thin and powerful fan e.g. for vehicle, comprises motor with external polyphase stator winding and iron magnetic return circuit
RU2235407C2 (en) 2001-03-02 2004-08-27 Общество с ограниченной ответственностью Научно-производственная фирма "Особые сварочные агрегаты" Inductor-type dc generator unit

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD16617A (en) *
JPH09312958A (en) * 1996-05-22 1997-12-02 Nippon Densan Corp Motor
JP2000274396A (en) * 1999-03-24 2000-10-03 Matsushita Electric Ind Co Ltd Pump

Patent Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2340828A1 (en) 1973-08-11 1975-02-27 Lloyd Dynamowerke Gmbh Brushless synchronous machine secondary excitation system - is used to form magnetic shunt for excitation pole array
GB1575083A (en) 1976-03-15 1980-09-17 Westinghouse Electric Corp Supplemental field excitation for a permanent magnet rotor of a pilot exciter
WO1979000187A1 (en) 1977-10-06 1979-04-19 Ass Elect Ind Synchronous machines
US4459087A (en) 1982-06-02 1984-07-10 Aciers Et Outillage Peugeot Fan unit for an internal combustion engine of automobile vehicle
US4553075A (en) * 1983-08-04 1985-11-12 Rotron Incorporated Simple brushless DC fan motor with reversing field
US4734590A (en) * 1986-12-30 1988-03-29 Sundstrand Corporation Integrated drive generator with common center line
US4949022A (en) * 1989-01-27 1990-08-14 Lipman Leonard H Solid state DC fan motor
DE4130016A1 (en) 1990-12-24 1993-03-11 Erich Rabe ELECTRONICALLY COMMUTED DC GENERATOR
US5191254A (en) 1991-09-19 1993-03-02 Allied-Signal Inc. Minimum length, air cooled ac generator arrangement
DE19800570A1 (en) 1998-01-09 1999-07-15 Bayerische Motoren Werke Ag Fan with impeller and associated drive motor with variable magnetizable stator part
DE10036339A1 (en) 2000-07-26 2002-02-07 Bayerische Motoren Werke Ag Extremely thin and powerful fan e.g. for vehicle, comprises motor with external polyphase stator winding and iron magnetic return circuit
RU2235407C2 (en) 2001-03-02 2004-08-27 Общество с ограниченной ответственностью Научно-производственная фирма "Особые сварочные агрегаты" Inductor-type dc generator unit

Also Published As

Publication number Publication date
DE102007018827A1 (en) 2008-10-30
US20100117467A1 (en) 2010-05-13
CN101663808B (en) 2013-01-02
JP5189162B2 (en) 2013-04-24
JP2010525771A (en) 2010-07-22
WO2008129002A1 (en) 2008-10-30
CN101663808A (en) 2010-03-03
EP2140540A1 (en) 2010-01-06

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